Quantum Field Theory Demystified

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McGraw Hill Professional, Mar 23, 2008 - Science - 299 pages
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Learn quantum field theory relatively easily

Trying to comprehend quantum field theory but don't have infinite time or the IQ of Einstein? No problem! This easy-to-follow guide helps you understand this complex subject matter without spending a lot of energy.

Quantum Field Theory Demystified covers essential principles such as particle physics and special relativity. You'll learn about Lagrangian field theory, group theory, and electroweak theory. The book also explains continuous and discrete symmetries, spontaneous symmetry breaking, and supersymmetry. With thorough coverage of the mathematics of quantum field theory and featuring end-of-chapter quizzes and a final exam to test your knowledge, this book will teach you the fundamentals of this theoretical framework in no time at all.

This fast and easy guide offers:

  • Numerous figures to illustrate key concepts
  • Sample equations with worked solutions
  • Coverage of quantum numbers
  • Details on the Dirac equation, the Feynman rules, and the Higgs mechanism
  • A time-saving approach to performing better on an exam or at work

Simple enough for a beginner, but challenging enough for an advanced student, Quantum Field Theory Demystified is your shortcut to understanding this fascinating area of physics.


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It is not a bad book for beginner, but it is full of typos and mistakes.


Chapter 1 Particle Physics and Special Relativity
Chapter 2 Lagrangian Field Theory
Chapter 3 An Introduction to Group Theory
Chapter 4 Discrete Symmetries and Quantum Numbers
Chapter 5 The Dirac Equation
Chapter 6 Scalar Fields
Chapter 7 The Feynman Rules
Chapter 8 Quantum Electrodynamics
Chapter 10 Electroweak Theory
Chapter 11 Path Integrals
Chapter 12 Supersymmetry
Final Exam
Solutions to Quizzes and Final Exam

Chapter 9 Spontaneous Symmetry Breaking and the Higgs Mechanism

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Page 5 - Einstein stated that the speed of light is the same for all inertial observers, and does not vary or depend on the motion of the source.
Page 164 - First let us start with the conservation of charge, which can be expressed (10.345) where p is the charge density and J is the current density in space.
Page 131 - The solution to this example is the famous infinite energy of the vacuum, which may or may not be a problem depending on your point of view.
Page 133 - ... that all creation operators are to the left of all annihilation operators...
Page 23 - TIT-T1-0 (2'2) dt dx dx where we have used a dot to denote differentiation with respect to time...
Page 82 - Conserved in the strong and electromagnetic interactions, but is violated in the weak interaction 4.
Page 2 - Schrodinger discarded it because it gave the wrong fine structure for the hydrogen atom.
Page 113 - Finding negative energy states was the first indication that the interpretation of the Klein-Gordon equation as a single particle wave equation is incorrect.
Page 44 - This type of transformation satisfies the requirements of special relativity — that no signal can travel faster than the speed of light.

About the author (2008)

David McMahon works as a researcher in theNational Laboratories. He has advanced degrees in physics and applied mathematics, and is the author of Quantum Mechanics Demystified, Relativity Demystified, and several other successful books.

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